1887

Abstract

A novel Gram-negative, non-motile bacterium, designated ZXM137, was isolated from seawater collected from a coastal region of Qingdao, China, during a massive green algae () bloom. Strain ZXM137 was strictly aerobic and did not accumulate poly-β-hydroxybutyrate. Growth occurred with 0.5–11.0 % (w/v) NaCl, at pH 6–9 (optimum of pH 7) and at 4–45 °C (optimum at 28 °C). It contained Q-10 as the predominant ubiquinone and the major polar lipids were phosphatidylglycerol, phospholipids, and an unidentified aminolipid and lipid. The major cellular fatty acids of strain ZXM137 were Cω7, Cω6 and 11-methyl Cω7. The DNA G+C content was 60.1 mol%. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain ZXM137 formed a distinct evolutionary lineage within the group in the class . On the basis of phenotypic, chemotaxonomic and phylogenetic evidence, strain ZXM137 represents a novel species in a new genus, for which the name gen. nov., sp. nov. is proposed; the type strain is ZXM137 ( = CGMCC 1.8891 = LMG 24854).

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2012-01-01
2019-10-22
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